DE3034599C2 - Insulating double half-shell for the sheathing of pipelines - Google Patents

Insulating double half-shell for the sheathing of pipelines

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Publication number
DE3034599C2
DE3034599C2 DE3034599A DE3034599A DE3034599C2 DE 3034599 C2 DE3034599 C2 DE 3034599C2 DE 3034599 A DE3034599 A DE 3034599A DE 3034599 A DE3034599 A DE 3034599A DE 3034599 C2 DE3034599 C2 DE 3034599C2
Authority
DE
Germany
Prior art keywords
layer
shell
protective jacket
paper layer
foam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE3034599A
Other languages
German (de)
Other versions
DE3034599A1 (en
Inventor
Heinrich 8880 Dillingen Moser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
E Schwenk Daemmtechnik & Co Kg 8910 Landsbe GmbH
Original Assignee
F & G Kunststoff Zweigniederlassung Der Felten & Guilleaume 5000 Koeln De GmbH
F & G Kunststoff Zweigniederlassung Der Felten & Guilleaume 5000 Koeln GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by F & G Kunststoff Zweigniederlassung Der Felten & Guilleaume 5000 Koeln De GmbH, F & G Kunststoff Zweigniederlassung Der Felten & Guilleaume 5000 Koeln GmbH filed Critical F & G Kunststoff Zweigniederlassung Der Felten & Guilleaume 5000 Koeln De GmbH
Priority to DE3034599A priority Critical patent/DE3034599C2/en
Publication of DE3034599A1 publication Critical patent/DE3034599A1/en
Application granted granted Critical
Publication of DE3034599C2 publication Critical patent/DE3034599C2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/145—Arrangements for the insulation of pipes or pipe systems providing fire-resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/24—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Description

a) innere Polyäthylenschicht 10—20 g/m2, vorzugsweise 13—17 g/m2,a) inner polyethylene layer 10-20 g / m 2 , preferably 13-17 g / m 2 ,

b) Papierschicht 100—300 g/m2, vorzugsweise 180-220 g/m2,b) paper layer 100-300 g / m 2 , preferably 180-220 g / m 2 ,

c) äußere Polyäthylenschicht 15—25 g/m2, vorzugsweise 18—22 g/m2,c) outer polyethylene layer 15-25 g / m 2 , preferably 18-22 g / m 2 ,

d) Metallfolie 6—12 Mikron, vorzugsweise 8—10 Mikron.d) Metal foil 6-12 microns, preferably 8-10 microns.

Die Erfindung betrifft eine !solierdoppelhalbschale nach dem Oberbegriff des Anspruchs 1.The invention relates to an insulating double half-shell according to the preamble of claim 1.

Aus der FR-PS 23 32 483 ist eine derartige Isolier schale aus Phenolharzschaum bekanntgeworden, die an ihrer Außenfläche eine etwa 1 mm dicke Hautschicht aus Phenol aufweist Daran schließt sich eine feuerfeste Papierschicht an, die mit Leim und Lack beschichtet ist, worauf eine ebenfalls außen mit Lack beschichtete Aluminiumfolie folgt. Diese Isolierhalbschale weist aber mehrere Nachteile auf. Zum einen besteht die Gefahr, daß eine entsprechend getränkte Papierschicht die Schaumschicht unmittelbar angreifen und zersetzen kann. Dies gilt insbesondere bei Verwendung von mit Bromsalz behandeltem Papier als eine der kostengünstigsten Herstellungmethoden für eine schwer entflammbare Isolierdoppelhalbschale dieser Art. Darüber hinaus muß auf der Papierschicht selbst zunächst eine Leimschicht aufgebracht werden, um eine Aluminiumfolie entsprechend befestigen zu können. From FR-PS 23 32 483 such an insulation is cup become known from phenolic foam which on its outer surface having an approximately 1 mm thick skin layer of phenolic This is followed by a refractory layer of paper, which is coated with glue and paint, and then a likewise externally aluminum foil coated with lacquer follows. However, this insulating half-shell has several disadvantages. On the one hand, there is the risk that a correspondingly soaked paper layer can attack and decompose the foam layer directly. This is especially true when using bromine salt-treated paper as one of the most cost-effective production methods for a flame-retardant insulating double-half shell of this type. In addition, a layer of glue must first be applied to the paper layer itself in order to be able to attach an aluminum foil accordingly.

Demgegenüber liegt der Erfindung die Aufgabe zugrunde, eine Isolierdoppelhalbschale der durch die französische Patentschrift 23 32 483 bekannten Art zu schaffen, die einfach und kostengünstig unter Verwendung von mit Bromsalz behandeltem Papier hergestellt werden kann.In contrast, the invention is based on the object of providing an insulating double half-shell by the French patent 23 32 483 known type to create the easy and inexpensive using can be made from bromine salt treated paper.

Die Aufgabe wird erfindungsgemäß entsprechend den im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmalen gelöst.According to the invention, the object is specified in accordance with the characterizing part of claim 1 Features solved.

Durch die Verwendung einer mit Bromsalz behandelten Papierschicht als Hauptbestandteil des Schutzmantels wird der Vorteil wesentlich geringerer Kosten erzielt, wobei darüber hinaus die Papierschicht durch die Behandlung mit Bromsalz schwer entflammbar ist. Derartige mit Bromsalz behandelte Papierschichten sind zwar an sich bekannt und bilden keinen Teil der vorliegenden Erfindung. Jedoch konnten bisher derartig behandelte Papierschichten nicht in Verbindung mit üblichen Isolierschaumstoffen, insbesondere Polyurethanschaumstoff, eingesetzt werden, da die in der Papierschicht enthaltenen Bromsalze auf die Oberfläche des Schaumstoffes eine zersetzende Wirkung ausüben. Darüber hinaus besteht das Problem, die zu verwendende Metallfolie einerseits' möglichst dünn zu machen, By using a paper layer treated with bromine salt as the main component of the protective jacket, the advantage of significantly lower costs is achieved, with the paper layer also being flame-retardant due to the treatment with bromine salt. Such paper layers treated with bromine salt are known per se and do not form part of the present invention. However, paper layers treated in this way could not be used in conjunction with conventional insulating foams, in particular polyurethane foam, since the bromine salts contained in the paper layer exert a decomposing effect on the surface of the foam. In addition, there is the problem of making the metal foil to be used on the one hand 'as thin as possible,

>o andererseits für die strukturelle Verstärkung der herzustellenden Schutzmantelfolie auszunützen. Durch die beiderseitige Beschichtung der behandelten Papierschicht mit Polyäthylen wird erreicht daß durch die innere Polyäthylenschicht eine Zersetzung der Außen-> o on the other hand for the structural reinforcement of the to use protective film to be produced. By coating the treated paper layer on both sides with polyethylene it is achieved that through the inner polyethylene layer a decomposition of the outer

is fläche des Schaumstoffes durch die Bromsalze vermieden wird. Durch die äußere Polyäthylenschicht wird ein Haftvermittler geschaffen, mit welchem die äußere Metallfolie praktisch unlösbar mit der Papierschicht zu verbinden ist Insgesamt läßt sich die IsolierdoppelhalbThe area of the foam is avoided by the bromine salts. Through the outer polyethylene layer a Adhesion promoter created with which the outer metal foil becomes practically inseparable from the paper layer connect is Overall, the insulating double-half can be schale nach der Erfindung auch durch die schmelzflüssig auf der Papierschicht aufgebrachten Polyäthylenschichten erheblich billiger als eine übliche !solierdoppelhalbschale herstellen, die zum einen schwer entflammbar ist und die daneben noch gute Wärmedämmeigensehaftenshell according to the invention also through the molten The polyethylene layers applied to the paper layer are considerably cheaper to produce than a conventional double half-shell insulation, which on the one hand is flame-retardant and the good thermal insulation properties aufweisthaving

Durch die Weiterbildung nach dem Anspruch 2 läßt sich die erfindungsgemäße Isolierdoppelhalbschale unter Verwendung handelsüblicher Papier- and Metallfolienqualitäten mit einer ausreichenden strukturellenThrough the development according to claim 2, the insulating double half-shell according to the invention can be using commercially available paper and metal foil grades with sufficient structural properties

Festigkeit billig herstellen.Manufacture strength cheaply.

Die Erfindung ist nachstehend anhand der Zeichnung näher erläutert weiche ein Ausführungsbeispiel einer erfindungsgemäßen Isolierdoppelhalbschale im axialen Halbschnitt sowie in einer stark vergrößerten bruch-The invention is explained in more detail below with reference to the drawing, which is an exemplary embodiment of a soft insulating double half-shell according to the invention in the axial half-section and in a greatly enlarged fracture

is stückweisen Darstellung veranschaulicht.is illustrated piece by piece.

Die in der Zeichnung veranschaulichte Isolierdoppelhalbschale umfaßt eine verhältnismäßig dicke Schicht 1 aus Polyurethanschaumstoff, wie sie schon bisher für einschlägige Erzeugnisse verwendet wurde. Die Polyure thanschicht 1 ist von einem Schutzmantel 2 umgeben, der insgesamt vier Schichten umfaßt, nämlich eine mit Bromsalz behandelte Papierschicht 3, auf welche in einem gleichzeitigen oder aufeinanderfolgenden Herstellungsgang eine innere Polyäthylenschicht 4 und eine äußere Polyäthylenschicht 5 schmelzflüssig aufgebracht wurden. Die innere Polyäthylenschicht 4 dient als Sperre zwischen den in der Papierschicht 3 enthaltenen Bromsalzen und der Schaumstoffschicht, welche durch diese Bromsalze sonst angegriffen würde. Die äußere The insulating double half-shell illustrated in the drawing comprises a relatively thick layer 1 made of polyurethane foam, as it has already been used for relevant products. The polyurethane layer 1 is surrounded by a protective jacket 2, which comprises a total of four layers, namely a bromine salt-treated paper layer 3, on which an inner polyethylene layer 4 and an outer polyethylene layer 5 were applied in a molten state in a simultaneous or successive production process. The inner polyethylene layer 4 serves as a barrier between the bromine salts contained in the paper layer 3 and the foam layer, which would otherwise be attacked by these bromine salts. The outer

so Polyäthylenschicht 5 dient als Haftvermittler für eine Aluminiumfolie 6, welche nach Wunsch mit einer dekorativen Oberflächenstruktur versehen sein kann.so polyethylene layer 5 serves as an adhesion promoter for an aluminum foil 6, which if desired with a decorative surface structure can be provided.

Beispielexample

In dem Schutzmantel 2 wird für die Papierschicht 3 ein Material mit einer Masse von 200 g/m2 verwendet. Die Masse der inneren Polyäthylenschicht 4 beträgt 15 g/m2, diejenige der äußeren Polyäthylenschicht 5 beträgt 20 g/m2. Die Dicke der Aluminiumfolie 6 beträgt 9 Mikron. Praktische Versuche ergaben, daß die strukturelle Festigkeit des Schutzmantels 2 derjenigen eines üblichen Schutzmantels aus einer Polyvinylchlorid-Folie mit einer Dicke von 0,300 mm Dicke ebenbürtig ist. Bei einer Innentemperatur von 80°C an der Schaumstoffschicht 1 und einer Außentemperatur von 200C ergibt sich ein Wärmedurchlaßwiderstand von 0,90 m2h°C/kcal. Bei Verwendung einer gleichdicken Schaumstoffschicht 1 in Verbindung mit einem üblichenIn the protective jacket 2, a material with a mass of 200 g / m 2 is used for the paper layer 3. The mass of the inner polyethylene layer 4 is 15 g / m 2 , that of the outer polyethylene layer 5 is 20 g / m 2 . The thickness of the aluminum foil 6 is 9 microns. Practical tests have shown that the structural strength of the protective jacket 2 is equivalent to that of a conventional protective jacket made of a polyvinyl chloride film with a thickness of 0.300 mm. At an internal temperature of 80 ° C to the foam layer 1 and an external temperature of 20 0 C, a thermal resistance results of 0.90 m 2 h ° C / Kcal. When using a foam layer 1 of the same thickness in conjunction with a conventional one

Schutzmantel aus Polyvinylchlorid beträgt der Wärmedurchiaßwidersiand nur 0.86 m2h°C/kcal. Infolgedessen ergibt sich durch die Erfindung bei geringeren Herstellungskosten ein um ca. 5% verbesserter Wärmedurchlaßwiderstand. .Protective jacket made of polyvinyl chloride, the heat transfer resistance is only 0.86 m 2 h ° C / kcal. As a result, the invention results in an approximately 5% improvement in thermal resistance at lower manufacturing costs. .

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (2)

Patentansprüche::Patent claims: 1. Isolierdoppelhalbschale aus Schaumstoff für die Ummantelung von Rohrleitungen mit einem die Außenfläche jeder Halbschale umgebenden Schutzmantel, bestehend aus einer schwer entflammbaren Papierschicht, einem Haftträger und einer außenliegenden Metallfolie, vorzugsweise einer Aluminiumfolie, dadurch gekennzeichnet, daß der Schutzmantel (2) eine unmittelbar auf den Schaumstoff folgende innere Polyäthylenscbicht (4), eine mit Bromsalz behandelte Papierschicht (3) und als Haftträger für die außenliegende Metallfolie (6) eine äußere Polyäthylenschicht (5) umfaßt, wobei die innere und/oder äußere Polyäthylenschicht (4; 5) schmelzflüssig auf der Papierschicht (3) aufgebracht sind.1. Insulating double half-shell made of foam for the Sheathing of pipelines with a protective jacket surrounding the outer surface of each half-shell, consisting of a flame-retardant one Paper layer, an adhesive carrier and an external metal foil, preferably an aluminum foil, characterized in that the Protective jacket (2) an inner Polyäthylenscbicht (4) immediately following the foam, one with Bromine salt treated paper layer (3) and one as an adhesive carrier for the outer metal foil (6) outer polyethylene layer (5), the inner and / or outer polyethylene layer (4; 5) are applied in molten form to the paper layer (3). 2. Isolierdoppelhalbschale nach Anspruch }., dadurch gekennzeichnet, daß die einzelnen Schichten des Schutzmantels folgende Massen bzw. Dicken aufweisen:2. Double insulating half-shell according to claim}., Characterized in that the individual layers of the protective jacket have the following dimensions or thicknesses:
DE3034599A 1980-09-13 1980-09-13 Insulating double half-shell for the sheathing of pipelines Expired DE3034599C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3034599A DE3034599C2 (en) 1980-09-13 1980-09-13 Insulating double half-shell for the sheathing of pipelines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3034599A DE3034599C2 (en) 1980-09-13 1980-09-13 Insulating double half-shell for the sheathing of pipelines

Publications (2)

Publication Number Publication Date
DE3034599A1 DE3034599A1 (en) 1982-03-25
DE3034599C2 true DE3034599C2 (en) 1984-02-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE3034599A Expired DE3034599C2 (en) 1980-09-13 1980-09-13 Insulating double half-shell for the sheathing of pipelines

Country Status (1)

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DE (1) DE3034599C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29506555U1 (en) * 1995-04-18 1995-07-20 Schnepf Waltraud Vapor and moisture barrier made of aluminum foil with a protective layer made of PE foam or non-woven fabric
EP2394812A1 (en) * 2010-04-19 2011-12-14 DQ Concepts B.V. Composite material and sheet material provided therewith

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2332483A1 (en) * 1975-11-18 1977-06-17 Tsangarakis Constantin Prefabricated cellular insulating element of phenolic foam - with outer protective layer of paper and aluminium foil
DE2807036C2 (en) * 1978-02-18 1982-10-07 Fa. Carl Freudenberg, 6940 Weinheim Insulating shell for a pipe

Also Published As

Publication number Publication date
DE3034599A1 (en) 1982-03-25

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Owner name: MUENCHOW & HUEHNE PRODUKTIONS UND HANDELS GMBH, 88

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Owner name: E. SCHWENK DAEMMTECHNIK GMBH & CO KG, 8910 LANDSBE

8339 Ceased/non-payment of the annual fee